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I dont know about their senders... but if you are going to replace the lock ring and gasket DO NOT order them from this place. Super thin, crappy gasket. Lock ring tabs were basically flat and would not seal. http://www.gastanks.com/ <------ No good.

trying to max out my big block stroker. right now there is a 750 carb on it. Should I go bigger? I dont have the carb specs in front of me but I will find them. Cam is fairly large. Stealth aluminum heads. Is it worth getting different heads? working the ones I currently have? 2" headers. 3,200...

What is your INITIAL timing? I had the same problem with a quick fuel. With the cam I have I needed like 20 degrees of initial timing so I could back off the idle speed screw and actually run off of the idle circuit. You are probably super rich at idle because youre idling off of the primary...

Thanks. Its MSD billet.

Need the Black one?

Different bushings?

I believe I'll try the 20* of initial. I think my total is all in at 36. J

I have a newer starter and comp is 10.5:1

20 seems like a lot for a street driven car? Please school me if I am wrong. J

I sprayed and checked for vacuum leaks. No rpm change when sprayed. I believe this is my cam. http://www.summitracing.com/parts/cca-20-672-4?seid=srese1&gclid=COrRo-X8q70CFafm7AodIEEAog My problem is I have low idle because if I turn in the idle speed screw too much it is exposing too...

My card says 6.5 power valve. If im only pulling 5" I need something like a 2.5 valve? Is that needed in both bowls? Thank you

Thanks. The idle feed restriction is in the metering block, yes? .033" is the stock size? What should I put in there? Also... having already bumped my air bleeds up significantly should I jet them back down before trying the idle feed restriction? Thank you for the help. James

They do have a power valve. What do I look for there? Timing is about 14 initial all in at 36 around 2800 or so. Does not appear to be dripping from the boosters. J

Cam is around .509. There is not a vacuum leak.

Recently slapped a quick fuel hr 750 mechanical secondaries carb on my 340. Pulls like a mule but is super rich at idle. Blows a tiny bit of smoke. Rings are healthy. I was having a problem with a hanging idle but I found this to be that I had the idle adjustment screw in too far. Backing...

Yes I am reusing the quick fuel gaskets as well. Bought a Russell set up and the thin metal gaskets seemed useless. Thanks

Yes sir! I got a new set up from quick fuel and it is a much better seal. One tiny leak at the port for the pressure gauge. Ordered a Tee with no pressure gauge port. Hopefully I am all set! Thank you! J

I got a set up from quick fuel and I think it will work out. Assembled on the bench and no leaks except for the poorly tapped fuel pressure gauge at the front T. Ordered an AN T with no port and I think this will set me straight! Thank you!

Got a dual feed from quick fuel. No leaks except from the 1/8" NTP for the pressure gauge. The npt was tapped poorly. A bit off center will only a couple threads on the left side of the port. I have ordered a tee fitting with no pressure gauge port. Hopefully this works. Thank you so much...

Im to the point of using it. I don't see how NPT seals without it. Thank you! J

Hey there. Recently installed a QFT 750 on my car and can't get the dual feed fuel lines to stop leaking. I have tried 2 different kinds. The cheapo Holley chrome style, and it leaked at the plug for the pressure gauge and leaked where the NPT to hose barb screws into the unit. The got a...

Hello all. Curious as to what octane I should be running for a big block with 13.8:1 compression? 112? 114? 116? Any advice helps. Looking around online people seem to have various opinions. Its 500ci drag motor. Thanks. James

I have a 400 stroked to 512. Aluminum heads. 9.5:1 compression. Currently has a 750 Holley on it. Was looking for a little more horse power without over carbing the motor. Would a Holly hp 950 be a good choice? Dominator? Also what adapters are needed? Any suggestions would be...